Solves: How many hours the backup lasts
Roxon Lithium 15 kWh
The Roxon Lithium 15 kWh (RB15) is a 48 V, 314 Ah, 15.07 kWh lithium iron phosphate (LFP) battery in a wheeled cabinet. It charges and discharges at 100 A standard and up to 200 A continuous, exceeds 5,000 cycles at 80 % depth of discharge and communicates with the inverter over CAN or RS485.
15.07 kWh48 V314 AhLFPOn wheels
Illustrative image
Application · Homes
Energy that keeps up with life at home.
At home, a power outage interrupts refrigeration, lighting, connectivity and remote work. Meanwhile, solar panels generate during the day, when many homes use little energy, and that energy isn’t always put to use.
Used in: Homes · Commerce and business
View the application →- 01
On wheels
15.07 kWh in a cabinet that can be positioned and moved without special tools.
- 02
Up to 200 A continuous
100 A standard charge and discharge, and over 5,000 cycles at 80 % DOD.
- 03
BMS linked to the inverter
CAN or RS485 communication to charge and discharge with real battery data.
- 04
Expands in parallel
Add batteries of the same model for more backup hours without changing the existing installation.
Code: RB15. Data from the datasheet, updated October 28, 2026.
| Parameter | RB15 |
|---|---|
| General | |
| Chemistry | Lithium iron phosphate (LFP) |
| Mounting | On wheels |
| Ingress protection | IP20 |
| Cooling | Natural air |
| Electrical | |
| Rated voltage | 48 V |
| Rated capacity | 314 Ah |
| Rated energy | 15.07 kWh |
| Operating voltage range | 42–54.75 V |
| Recommended charge voltage | 51.75 V |
| Recommended discharge cut-off voltage | 45 V |
| Standard charge current | 100 A |
| Max. continuous charge current | 200 A |
| Standard discharge current | 100 A |
| Max. discharge current | 200 A |
| Service life | |
| Cycle life | 5,000+ (80 % DOD) |
| Design life | > 10 years |
| Environment | |
| Operating temperature | −30 to 60 (recommended 10 to 35) °C |
| Humidity | < 85 (RH) % |
| Storage temperature | −20 to 65 (recommended 10 to 35) °C |
| Charging temperature | 0 to 55 °C |
| Discharging temperature | −10 to 55 °C |
| Physical | |
| Max. size (depth × width × height) | 248 × 680 × 880 mm |
| Weight | 141 kg |
| Communication | |
| Interfaces | CAN / RS485 (customizable) |
| Functions | |
| Display | LCD, inverter protocol selection from the display |
| Parallel operation | Yes, automatic addressing |
| Additional features | Concealed wiring |
Send us the load, the hours of autonomy you need and the sources you have. We’ll send back a configuration with equipment and datasheets.
Ask about this unitQuestions about the Roxon Lithium 15 kWh
How much energy does the Roxon Lithium 15 kWh store?
15.07 kWh: 48 V × 314 Ah. At 80 % depth of discharge it delivers around 12 kWh of usable energy per cycle.
How long does the Roxon Lithium 15 kWh last?
Over 5,000 cycles at 80 % depth of discharge. At one cycle per day, that equals about 13 years.
